# import time
#
# from datetime import datetime, timedelta
#
# from flask import render_template, request, session, redirect, url_for, g, current_app, jsonify, abort
#
# from info import constants, db
# from info.models import User, News, Category
# from info.utils.captcha.response_code import RET
# from info.utils.common import user_login_data
# from info.utils.image_storage import storage
# from .import admin_blu
#
# @admin_blu.route('/index')
# @user_login_data
# def index():
#     user=g.user
#     print(user.nick_name)
#     return render_template('admin/index.html',user=user.to_dict())
#
#
# @admin_blu.route('/login',methods=['POST','GET'])
# def login():
#     # print(url_for('admin.login'))
#     if request.method=='GET':
#         # 如果用户已经登录直接定向到管理员后台主页
#         user_id=session.get("user_id",None)
#         print(user_id)
#         is_admin=session.get("is_admin",False)
#
#         if user_id and is_admin:
#             return redirect(url_for('admin.index'))
#
#         return render_template('admin/login.html')
#
#     # 取到登录的参数,并进行校验
#     username=request.form.get('username')
#     password=request.form.get('password')
#
#     # 校验参数
#     if not all([username,password]):
#         return render_template('admin/login.html',errmsg='参数错误')
#
#     # 查询当前用户
#     try:
#         user=User.query.filter(User.mobile==username,User.is_admin==True).first()
#     except Exception as r:
#         return render_template('admin/login.html', errmsg='用户信息查询失败')
#
#     if not user:
#         return render_template('admin/login.html', errmsg='未查询到用户信息')
#
#     # 校验密码
#     if not user.check_password(password):
#         return render_template('admin/login.html', errmsg='密码输入错误')
#
#     # 保存用户的登录信息
#     session['user_id']=user.id
#     session['mobile']=user.mobile
#     session['nick_name']=user.nick_name
#     session['is_admin']=user.is_admin
#
#     # 登录成功后跳转到后面管理首页
#     return redirect(url_for('admin.index'))
#
# @admin_blu.route('/user_count')
# def user_count():
#     total_count=0
#     # 查询用户总数
#     try:
#         total_count=User.query.filter(User.is_admin==False).count()
#     except Exception as r:
#         current_app.logger.error(r)
#
#     # 查询月赠人数
#     mon_count=0
#     # 获取当前时间
#     t=time.localtime()
#     begin_mon_data_str='%d-%2d-01' % (t.tm_year,t.tm_mon)
#     # 将字符串转换成datetime对象
#     begin_mon_data=datetime.strptime(begin_mon_data_str,'%Y-%m-%d')
#     # print(begin_mon_data)
#     try:
#         # 查询创建时间小于当月时间的用户的总数
#         mon_count=User.query.filter(User.create_time>begin_mon_data,User.is_admin==False).count()
#     except Exception as r:
#         current_app.logger.error(r)
#
#     # 日新增人数
#     day_count=0
#
#     begin_day_data=datetime.strptime(('%d-%02d-%02d' % (t.tm_year,t.tm_mon,t.tm_mday)),'%Y-%m-%d')
#     try:
#         day_count=User.query.filter(User.create_time>begin_day_data,User.is_admin==False).count()
#     except Exception as r:
#         current_app.logger.error(r)
#
#     # 折线图数据
#     active_time=[]
#     active_count=[]
#
#     begin_today_date=datetime.strptime(('%d-%02d-%02d' % (t.tm_year,t.tm_mon,t.tm_mday)),'%Y-%m-%d')
#
#     for i in range(0,30):
#         begin_date=begin_today_date-timedelta(days=i)
#         end_date=begin_today_date-timedelta(days=(i-1))
#         print(begin_date)
#         print(end_date)
#         count=User.query.filter(User.is_admin==False,User.last_login>=begin_date,User.last_login<end_date).count()
#         active_count.append(count)
#         active_time.append(begin_date.strftime('%Y-%m-%d'))
#
#     active_time.reverse()
#     active_count.reverse()
#     data={
#         "total_count":total_count,
#         "mon_count":mon_count,
#         "day_count":day_count,
#         # 不能直接在返回值里面翻转,这样写的话是把active_count.reverse()的返回值给active_count,返回值为None
#         # "active_count":active_count.reverse(),
#         # "active_time":active_time.reverse()
#
#          "active_count":active_count,
#         "active_time":active_time
#     }
#
#     return render_template('admin/user_count.html',data=data)
#
#
# @admin_blu.route('/user_list')
# def user_list():
#
#     page=request.args.get('p',1)
#     try:
#         page=int(page)
#     except Exception as r:
#         current_app.logger.error(r)
#         page=1
#
#     users=[]
#     current_page=1
#     total_page=1
#
#     try:
#         paginate=User.query.filter(User.is_admin==False).paginate(page,constants.ADMIN_USER_PAGE_MAX_COUNT,False)
#         print(paginate)
#         users = paginate.items
#         print(users)
#         current_page=paginate.page
#         total_page=paginate.pages
#     except Exception as r:
#         current_app.logger.error(r)
#
#     # 进行模型列表转字典列表
#     user_dict_li=[]
#     for user in users:
#         user_dict_li.append(user.to_admin_dict())
#
#     data={
#         "users":user_dict_li,
#         "current_page":current_page,
#         "total_page":total_page
#     }
#
#     return render_template('admin/user_list.html',data=data)
#
#
# @admin_blu.route('/news_review')
# def news_review():
#     # 先不给传默认值
#     page=request.args.get('p',1)
#     keywords=request.args.get('keywords',None)
#     # print(page)
#     try:
#         page=int(page)
#     except Exception as r:
#         current_app.logger.error(r)
#         page=1
#
#     news_list=[]
#     current_page=1
#     total_page=1
#
#     filters=[News.status!=0]
#     # 如果关键字存在,就添加关键字搜索
#     if keywords:
#         filters.append(News.title.contains(keywords))
#         print(filters)
#     try:
#         paginate=News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page,constants.ADMIN_USER_PAGE_MAX_COUNT,False)
#         news_list=paginate.items
#         current_page=paginate.page
#         total_page=paginate.pages
#     except Exception as r:
#         current_app.logger.error(r)
#
#     news_dict_list=[]
#     for news in news_list:
#         news_dict_list.append(news.to_review_dict())
#
#     data={
#         "news_list":news_dict_list,
#         "current_page":current_page,
#         "total_page":total_page
#     }
#
#     return render_template('admin/news_review.html',data=data)
#
# @admin_blu.route('/news_review_detail/<int:news_id>')
# def news_review_detail(news_id):
#     # 新闻审核
#     # 通过id查询新闻
#     news=None
#     try:
#         news=News.query.get(news_id)
#     except Exception as r:
#         current_app.logger.error(r)
#
#     if not news:
#         return render_template('admin/news_review_detail.html',data={'errmsg':'未查询到此新闻'})
#
#     data={
#         "news": news.to_dict()
#     }
#
#     return render_template('admin/news_review_detail.html',data=data)
#
#
# @admin_blu.route('/news_review_action',methods=['POST','GET'])
# def new_review_action():
#     # 接收参数
#     news_id=request.json.get('news_id',None)
#     action=request.json.get('action',None)
#
#     if not all([news_id,action]):
#         return jsonify(errno=RET.PARAMERR,errmsg='参数错误')
#
#     if action not in ['accept','reject']:
#         return jsonify(errno=RET.PARAMERR,errmsg='参数错误')
#
#     # 查询指定的新闻数据
#     try:
#         news=News.query.get(news_id)
#     except Exception as r:
#         current_app.logger.error(r)
#         return jsonify(errno=RET.DATAERR,errmsg='数据库查询错误')
#
#     if not news:
#         return jsonify(errno=RET.NODATA,errmsg='未查询到相关数据')
#
#     if action=='accept':
#         # 表示审核通过,将新闻的news.status值变为0
#         news.status=0
#     else:
#         # 表示未通过
#         reason=request.json.get('reason',None)
#         if not reason:
#             return jsonify(errno=RET.PARAMERR, errmsg='请输入未通过原因')
#
#         news.status=-1
#         news.reason=reason
#
#     return jsonify(errno=RET.OK, errmsg='审核通过')
#
# @admin_blu.route('/news_edit')
# def news_edit():
#     """新闻编辑"""
#     page = request.args.get("p", 1)
#     keywords = request.args.get("keywords", None)
#     try:
#         page = int(page)
#     except Exception as e:
#         current_app.logger.error(e)
#         page = 1
#
#     news_list = []
#     current_page = 1
#     total_page = 1
#
#     filters = [News.status == 0]
#     # 如果关键字存在，那么就添加关键字搜索
#     if keywords:
#         filters.append(News.title.contains(keywords))
#     try:
#         paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)
#
#         news_list = paginate.items
#         current_page = paginate.page
#         total_page = paginate.pages
#     except Exception as e:
#         current_app.logger.error(e)
#
#     news_dict_list = []
#     for news in news_list:
#         news_dict_list.append(news.to_basic_dict())
#
#     data = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}
#
#     return render_template('admin/news_edit.html', data=data)
#
#
# @admin_blu.route('/news_edit_detail', methods=["get", "post"])
# def news_edit_detail():
#
#     if request.method == "GET":
#         # 查询点击的新闻的相关数据并传入到模板中
#         news_id = request.args.get("news_id")
#
#         if not news_id:
#             abort(404)
#
#         try:
#             news_id = int(news_id)
#         except Exception as e:
#             current_app.logger.error(e)
#             return render_template('admin/news_edit_detail.html', errmsg="参数错误")
#
#         try:
#             news = News.query.get(news_id)
#         except Exception as e:
#             current_app.logger.error(e)
#             return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")
#
#         if not news:
#             return render_template('admin/news_edit_detail.html', errmsg="未查询到数据")
#
#         # 查询分类数据
#         try:
#             categories = Category.query.all()
#         except Exception as e:
#             current_app.logger.error(e)
#             return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")
#
#         category_dict_li = []
#         for category in categories:
#             # 取到分类的字典
#             cate_dict = category.to_dict()
#             # 判断当前遍历到的分类是否是当前新闻的分类，如果是，则添加is_selected为true
#             if category.id == news.category_id:
#                 cate_dict["is_selected"] = True
#             category_dict_li.append(cate_dict)
#
#         # 移除最新的分类
#         category_dict_li.pop(0)
#
#         data = {
#             "news": news.to_dict(),
#             "categories": category_dict_li
#         }
#
#         return render_template('admin/news_edit_detail.html', data=data)
#
#     # 取到Post进来的数据
#     news_id = request.form.get("news_id")
#     title = request.form.get("title")
#     digest = request.form.get("digest")
#     content = request.form.get("content")
#     index_image = request.files.get("index_image")
#     category_id = request.form.get("category_id")
#     # 1.1 判断数据是否有值
#     if not all([title, digest, content, category_id]):
#         return jsonify(errno=RET.PARAMERR, errmsg="参数有误")
#
#     # 查询指定id的
#     try:
#         news = News.query.get(news_id)
#     except Exception as e:
#         current_app.logger.error(e)
#         return jsonify(errno=RET.DBERR, errmsg="数据查询失败")
#
#     if not news:
#         return jsonify(errno=RET.NODATA, errmsg="未查询到新闻数据")
#
#     # 1.2 尝试读取图片
#     if index_image:
#         try:
#             index_image = index_image.read()
#         except Exception as e:
#             current_app.logger.error(e)
#             return jsonify(errno=RET.PARAMERR, errmsg="参数有误")
#
#         # 2. 将标题图片上传到七牛
#         try:
#             key = storage(index_image)
#         except Exception as e:
#             current_app.logger.error(e)
#             return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")
#         news.index_image_url = constants.QINIU_DOMIN_PREFIX + key
#
#     # 3. 设置相关数据
#     news.title = title
#     news.digest = digest
#     news.content = content
#     news.category_id = category_id
#
#     return jsonify(errno=RET.OK, errmsg="OK")
#
#
# @admin_blu.route('/news_type', methods=["GET", "POST"])
# def news_type():
#     if request.method == "GET":
#         # 查询分类数据
#         try:
#             categories = Category.query.all()
#         except Exception as e:
#             current_app.logger.error(e)
#             return render_template('admin/news_type.html', errmsg="查询数据错误")
#
#         category_dict_li = []
#         for category in categories:
#             # 取到分类的字典
#             cate_dict = category.to_dict()
#             category_dict_li.append(cate_dict)
#
#         # 移除最新的分类
#         category_dict_li.pop(0)
#
#         data = {
#             "categories": category_dict_li
#         }
#
#         return render_template('admin/news_type.html', data=data)
#
#     # 新增或者添加分类
#     # 1. 取参数
#     c_name = request.json.get("name")
#     # 如果传了cid，代表是编辑已存在的分类
#     cid = request.json.get("id")
#
#     if not c_name:
#         return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
#
#     if cid:
#         # 有 分类 id 代表查询相关数据
#         try:
#             cid = int(cid)
#             category = Category.query.get(cid)
#         except Exception as e:
#             current_app.logger.error(e)
#             return jsonify(errno=RET.PARAMERR, errmsg="参数错误")
#
#         if not category:
#             return jsonify(errno=RET.NODATA, errmsg="未查询到分类数据")
#         category.name = c_name
#     else:
#         category = Category()
#         category.name = c_name
#         db.session.add(category)
#
#     return jsonify(errno=RET.OK, errmsg="OK")

import time
from datetime import datetime, timedelta

from flask import abort
from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants, db
from info.models import User, News, Category
from info.modules.admin import admin_blu
from info.utils.common import user_login_data
from info.utils.image_storage import storage
from info.utils.captcha.response_code import RET


@admin_blu.route('/news_type', methods=["GET", "POST"])
def news_type():

    if request.method == "GET":
        # 查询分类数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_type.html', errmsg="查询数据错误")

        category_dict_li = []
        for category in categories:
            # 取到分类的字典
            cate_dict = category.to_dict()
            category_dict_li.append(cate_dict)

        # 移除最新的分类
        category_dict_li.pop(0)

        data = {
            "categories": category_dict_li
        }

        return render_template('admin/news_type.html', data=data)

    # 新增或者添加分类
    # 1. 取参数
    cname = request.json.get("name")
    # 如果传了cid，代表是编辑已存在的分类
    cid = request.json.get("id")

    if not cname:
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if cid:
        # 有 分类 id 代表查询相关数据
        try:
            cid = int(cid)
            category = Category.query.get(cid)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

        if not category:
            return jsonify(errno=RET.NODATA, errmsg="未查询到分类数据")
        category.name = cname
    else:
        category = Category()
        category.name = cname
        db.session.add(category)

    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_edit_detail', methods=["get", "post"])
def news_edit_detail():

    if request.method == "GET":
        # 查询点击的新闻的相关数据并传入到模板中
        news_id = request.args.get("news_id")

        if not news_id:
            abort(404)

        try:
            news_id = int(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="参数错误")

        try:
            news = News.query.get(news_id)
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

        if not news:
            return render_template('admin/news_edit_detail.html', errmsg="未查询到数据")

        # 查询分类数据
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return render_template('admin/news_edit_detail.html', errmsg="查询数据错误")

        category_dict_li = []
        for category in categories:
            # 取到分类的字典
            cate_dict = category.to_dict()
            # 判断当前遍历到的分类是否是当前新闻的分类，如果是，则添加is_selected为true
            if category.id == news.category_id:
                cate_dict["is_selected"] = True
            category_dict_li.append(cate_dict)

        # 移除最新的分类
        category_dict_li.pop(0)

        data = {
            "news": news.to_dict(),
            "categories": category_dict_li
        }

        return render_template('admin/news_edit_detail.html', data=data)

    # 取到Post进来的数据
    news_id = request.form.get("news_id")
    title = request.form.get("title")
    digest = request.form.get("digest")
    content = request.form.get("content")
    index_image = request.files.get("index_image")
    category_id = request.form.get("category_id")
    # 1.1 判断数据是否有值
    if not all([title, digest, content, category_id]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

    # 查询指定id的
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到新闻数据")

    # 1.2 尝试读取图片
    if index_image:
        try:
            index_image = index_image.read()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.PARAMERR, errmsg="参数有误")

        # 2. 将标题图片上传到七牛
        try:
            key = storage(index_image)
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno=RET.THIRDERR, errmsg="上传图片错误")
        news.index_image_url = constants.QINIU_DOMIN_PREFIX + key

    # 3. 设置相关数据
    news.title = title
    news.digest = digest
    news.content = content
    news.category_id = category_id

    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_edit')
def news_edit():
    """新闻编辑"""
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status == 0]
    # 如果关键字存在，那么就添加关键字搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_basic_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_edit.html', data=context)





@admin_blu.route('/news_review_action', methods=["POST"])
def news_review_action():
    # 1. 接受参数
    news_id = request.json.get("news_id")
    action = request.json.get("action")

    # 2. 参数校验
    if not all([news_id, action]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    if action not in("accept", "reject"):
        return jsonify(errno=RET.PARAMERR, errmsg="参数错误")

    # 查询到指定的新闻数据
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="数据查询失败")

    if not news:
        return jsonify(errno=RET.NODATA, errmsg="未查询到数据")

    if action == "accept":
        # 代表接受
        news.status = 0
    else:
        # 代表拒绝
        reason = request.json.get("reason")
        if not reason:
            return jsonify(errno=RET.PARAMERR, errmsg="请输入拒绝原因")
        news.status = -1
        news.reason = reason

    return jsonify(errno=RET.OK, errmsg="OK")


@admin_blu.route('/news_review_detail/<int:news_id>')
def news_review_detail(news_id):

    # 通过id查询新闻
    news = None
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)

    if not news:
        return render_template('admin/news_review_detail.html', data={"errmsg": "未查询到此新闻"})

    # 返回数据
    data = {"news": news.to_dict()}
    return render_template('admin/news_review_detail.html', data=data)


@admin_blu.route('/news_review')
def news_review():
    page = request.args.get("p", 1)
    keywords = request.args.get("keywords", None)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    news_list = []
    current_page = 1
    total_page = 1

    filters = [News.status != 0]
    # 如果关键字存在，那么就添加关键字搜索
    if keywords:
        filters.append(News.title.contains(keywords))
    try:
        paginate = News.query.filter(*filters) \
            .order_by(News.create_time.desc()) \
            .paginate(page, constants.ADMIN_NEWS_PAGE_MAX_COUNT, False)

        news_list = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    news_dict_list = []
    for news in news_list:
        news_dict_list.append(news.to_review_dict())

    context = {"total_page": total_page, "current_page": current_page, "news_list": news_dict_list}

    return render_template('admin/news_review.html', data=context)


@admin_blu.route('/user_list')
def user_list():
    page = request.args.get("page", 1)

    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    users = []
    current_page = 1
    total_page = 1

    try:
        paginate = User.query.filter(User.is_admin == False).paginate(page, constants.ADMIN_USER_PAGE_MAX_COUNT, False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 进行模型列表转字典列表
    user_dict_li = []
    for user in users:
        user_dict_li.append(user.to_admin_dict())

    data = {
        "users": user_dict_li,
        "total_page": total_page,
        "current_page": current_page,
    }

    return render_template('admin/user_list.html', data=data)


@admin_blu.route('/user_count')
def user_count():
    # 总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin == False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 月新增数
    mon_count = 0
    t = time.localtime()
    begin_mon_date_str = '%d-%02d-01' % (t.tm_year, t.tm_mon)
    # 将字符串转成datetime对象
    begin_mon_date = datetime.strptime(begin_mon_date_str, "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin == False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 日新增数
    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin == False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 拆线图数据

    active_time = []
    active_count = []

    # 取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")

    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到下一天的0点0分
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date,
                                  User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # User.query.filter(User.is_admin == False, User.last_login >= 今天0点0分, User.last_login < 今天24点).count()

    # 反转，让最近的一天显示在最后
    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count": active_count
    }

    return render_template('admin/user_count.html', data=data)


@admin_blu.route('/index')
@user_login_data
def index():
    user = g.user
    return render_template('admin/index.html', user=user.to_dict())


@admin_blu.route('/login', methods=["GET", "POST"])
def login():
    if request.method == "GET":
        # 判断当前是否有登录，如果有登录直接重定向到管理员后台主页
        user_id = session.get("user_id", None)
        is_admin = session.get("is_admin", False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))

        return render_template('admin/login.html')

    # 取到登录的参数
    username = request.form.get("username")
    password = request.form.get("password")

    # 判断参数
    if not all([username, password]):
        return render_template('admin/login.html', errmsg="参数错误")

    # 查询当前用户
    try:
        user = User.query.filter(User.mobile == username, User.is_admin == True).first()
    except Exception as e:
        current_app.logger.error(e)
        return render_template('admin/login.html', errmsg="用户信息查询失败")

    if not user:
        return render_template('admin/login.html', errmsg="未查询到用户信息")

    # 校验密码
    if not user.check_password(password):
        return render_template('admin/login.html', errmsg="用户名或者密码错误")

    # 保存用户的登录信息
    session["user_id"] = user.id
    session["mobile"] = user.mobile
    session["nick_name"] = user.nick_name
    session["is_admin"] = user.is_admin

    # 跳转到后面管理首页
    return redirect(url_for('admin.index'))
